EP0064916B1 - Masse silico-calcaire à haute porosité et procédé de préparation - Google Patents
Masse silico-calcaire à haute porosité et procédé de préparation Download PDFInfo
- Publication number
- EP0064916B1 EP0064916B1 EP82400777A EP82400777A EP0064916B1 EP 0064916 B1 EP0064916 B1 EP 0064916B1 EP 82400777 A EP82400777 A EP 82400777A EP 82400777 A EP82400777 A EP 82400777A EP 0064916 B1 EP0064916 B1 EP 0064916B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- silica
- lime
- high porosity
- preparation
- synthetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004571 lime Substances 0.000 title claims description 25
- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims description 24
- 235000011941 Tilia x europaea Nutrition 0.000 title claims description 24
- 238000000034 method Methods 0.000 title claims description 10
- 238000004519 manufacturing process Methods 0.000 title description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 114
- 239000000377 silicon dioxide Substances 0.000 claims description 58
- 229910001868 water Inorganic materials 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 19
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 11
- 229920002994 synthetic fiber Polymers 0.000 claims description 8
- 230000002745 absorbent Effects 0.000 claims description 7
- 239000002250 absorbent Substances 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 2
- 239000004760 aramid Substances 0.000 claims description 2
- 229920003235 aromatic polyamide Polymers 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 3
- 238000003786 synthesis reaction Methods 0.000 claims 3
- 229910052681 coesite Inorganic materials 0.000 claims 2
- 229910052906 cristobalite Inorganic materials 0.000 claims 2
- 229910052682 stishovite Inorganic materials 0.000 claims 2
- 229910052905 tridymite Inorganic materials 0.000 claims 2
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims 1
- 229910052593 corundum Inorganic materials 0.000 claims 1
- 229910001845 yogo sapphire Inorganic materials 0.000 claims 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 14
- 239000006028 limestone Substances 0.000 description 10
- 238000003756 stirring Methods 0.000 description 10
- 229920000049 Carbon (fiber) Polymers 0.000 description 9
- 239000004917 carbon fiber Substances 0.000 description 9
- 238000001035 drying Methods 0.000 description 8
- 239000000292 calcium oxide Substances 0.000 description 7
- 235000012255 calcium oxide Nutrition 0.000 description 7
- 238000010411 cooking Methods 0.000 description 7
- 239000011148 porous material Substances 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- 239000000375 suspending agent Substances 0.000 description 6
- 238000011049 filling Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 239000012209 synthetic fiber Substances 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 239000010425 asbestos Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229910052895 riebeckite Inorganic materials 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000011872 intimate mixture Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000012783 reinforcing fiber Substances 0.000 description 2
- 239000012265 solid product Substances 0.000 description 2
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 description 1
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019326 ethyl hydroxyethyl cellulose Nutrition 0.000 description 1
- 229920003089 ethylhydroxy ethyl cellulose Polymers 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/18—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S502/00—Catalyst, solid sorbent, or support therefor: product or process of making
- Y10S502/526—Sorbent for fluid storage, other than an alloy for hydrogen storage
Definitions
- the present invention relates to a silico-limestone mass with high porosity, usable in particular in the field of packing materials for containers intended for storing dissolved gases and in that of insulating materials.
- the known porous masses of this type are produced from an intimate mixture of lime, crushed or fossil silica and asbestos suspended in water.
- the paste thus obtained introduced into containers, molds or bottles, is then subjected to the action of heat in an autoclave to initiate and completely carry out the lime-silica reaction which gives rise to lime-silica; then transfer to a drying oven to remove water and create the desired porosity.
- German patent application DE-A-2,318,135 there is known a process for preparing silica-lime bricks by pressing a relatively dry mixture of ultra-fine silica and lime.
- the process for manufacturing silica-limestone aggregates known from European application EP-A-0.007.586 uses a foaming aqueous paste containing, if necessary, ultra-fine silica in small quantities.
- Asbestos is added to the aqueous composition of silica and lime for its action of reinforcing fiber and suspending agent.
- the recent constraints relating to the health and safety conditions linked to the handling of asbestos have led to reconsider the use of this natural fiber whose characteristic properties, in the manufacture of porous silica-limestone masses, are of arm the crystal structure and help maintain the suspension of solid products: silica and lime in a large amount of water.
- amorphous ultrafine synthetic silica with a high specific surface of 150 to 300 m 2 per gram of high absorption capacity corresponding to an amount of dioctylphthalate in milliliters necessary at the start of pasting of 100 g of product at less equal to 150, preferably between 170 and 350, in total or partial replacement of the ground silica, makes it possible very advantageously to obtain, by autoclaving, homogeneous silica-limestone masses with high porosity having satisfactory mechanical properties.
- the aqueous paste based on a mixture of divided silica and lime contains at least 50% of ultra-fine synthetic silica, and the amorphous ultra-fine silica is very advantageously used in an amount of between 70 and 100% relative to the total amount of silica.
- the total amount of silica used is slightly higher than that of lime, in a proportion of 10 to 30% and water is used in an amount at least three times greater than the solids, preferably in a ratio of 3 to 4 , 6.
- the particles of synthetic amorphous ultra-fine silica have a particle size of the order of a few microns ( ⁇ m). These elementary particles can associate in chains in three dimensions thus forming an aggregate type structure, and by drying, the aggregates associate in agglomerates. These arrangements of aggregates and agglomerates create a macroporous structure which has a high absorption capacity.
- This absorption capacity can be expressed by taking liquid in milliliters per 100 g of product, taking DOP or oil.
- the DOP intake is equal to the amount of dioctyphthalate in milliliters required at the start of baking 100 g of product.
- the products having an absorption capacity at least equal to 150 and preferably between 170 and 350, are suitable for carrying out the process.
- ultra-fine synthetic silicas known under the designation of silica pigments, are in the form of fine, light powders with an apparent specific mass of the order of 0.25 to 0.35 kg / dm 3 which can absorb up to more than twice their weight of water.
- These ultra-fine silicas are, for example, manufactured by pyrogenation of silicon tetrachloride or by chemical precipitation in an aqueous medium of a soluble silicate.
- Amorphous ultra-fine synthetic silicas containing a small molar proportion of constitution which can be a molar fraction of about 1/10, as well as hydrated silicas with a low proportion of constitution water and containing a low molar fraction of aluminum oxide and a low molar fraction of sodium oxide , are very interesting constituents in the preparation of the paste intended for the manufacture of a silica-limestone porous mass.
- amorphous synthetic silicas can be used alone or as a mixture.
- These synthetic fibers are introduced into the porous material at a rate of 3 to 15% relative to the solids, and preferably 4 to 6%.
- Synthetic fibers called chemical fibers of the layered polymer type, such as carbon fibers or carbonaceous fibers, of the ladder polymer type such as aromatic polyamide fibers, alone or as a mixture, are useful reinforcing fibers.
- the paste is prepared by adding the various constituents in water: lime, crushed silica, ultra-fine amorphous synthetic silica and synthetic fibers with stirring for 5 to 20 minutes until an intimate mixture is obtained, then the paste obtained is introduced into bottles, containers or molds, under partial vacuum.
- the bottles are then provided with a porous stopper and carried in an autoclave for cooking lasting between 17 and 24 hours under a saturated water vapor pressure of about ten bars, then subjected to progressive drying. a few days, at a maximum temperature of 330 ° C.
- quicklime can be quenched by intimately mixing it with a portion of the water.
- the process of the application makes it possible to obtain silico-limestone masses of high porosity, which can be greater than 90%.
- porous materials are particularly suitable for filling containers and bottles intended to store dissolved gases, in particular acetylene.
- dissolved gases in particular acetylene.
- the nature of these materials makes them interesting in the field of thermal insulation, and also in the building sector, in particular as sound insulation.
- Example 1 Manufacture without fibers.
- the full bottles are then provided with a porous stopper before being carried in an autoclave.
- the duration of the autoclave cooking is 20 hours under a saturated steam pressure of 10 bars of water, then a gradual drying is carried out for 4 days, at a maximum temperature of 330 ° C.
- the porous masses contained the bottles are homogeneous and have a longitudinal shrinkage of less than 1 mm and a crushing strength of 15 to 20 kgs / cm 2 (1.47 to 1.96 N / mm 2 ) and a porosity of 90% ⁇ 1%.
- Example 2 Manufacture with mineral fibers.
- the bottles After curing and drying under the same conditions as above, the bottles contain a homogeneous porous mass titrating 89 ⁇ 1% of porosity and 10 to 20 kg / cm 2 (0.98 to 1.96 N / mm 2 ) of resistance to mechanical crushing.
- Example 3 Manufacturing with carbon fibers.
- the porous material After cooking and drying under the conditions indicated above, the porous material has the following physical characteristics: porosity 90% ⁇ 1% and resistance to crushing from 20 to 35 kg / cm 2 (1.96 to 3.33 N / mm 2 ).
- Example 4 manufacture with carbon fibers.
- the silico-limestone material thus prepared, has the following physical characteristics: a porosity of 92% ⁇ 1%, density 0.210 ⁇ 0.05, resistance to crushing from 15 to 20 kg / cm 2 (1.47 to 1 , 96 N / mm 2) .
- Example 5 Manufacturing with carbon fibers.
- the porous material After cooking and drying under the conditions indicated above, the porous material has the following physical characteristics: porosity 90% ⁇ 1 and resistance to crushing from 20 to 35 kg / cm 2 (1.96 to 3.3 3 N / mm 2 ).
- Example 6 Manufacturing with carbon fibers.
- the suspension introduced into the containers is subjected to cooking under 11 bars of saturated steam, for 20 hours, then gradually dried at atmospheric pressure, at a maximum temperature of 330 ° C. to constant weight.
- the silico-limestone material thus prepared, has the following physical characteristics: a porosity of 92% ⁇ 1, density 0.210 ⁇ 0.05, resistance to crushing of 15 to 20 kg / cm 2 (1.47 to 1, 96 N / mm 2 ).
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Paper (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT82400777T ATE11523T1 (de) | 1981-05-13 | 1982-04-29 | Kalk-kieselsaeure-masse hoher porositaet und verfahren zu deren herstellung. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8109538A FR2505814A1 (fr) | 1981-05-13 | 1981-05-13 | Masse silico-calcaire a haute porosite et procede de preparation |
| FR8109538 | 1981-05-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0064916A1 EP0064916A1 (fr) | 1982-11-17 |
| EP0064916B1 true EP0064916B1 (fr) | 1985-01-30 |
Family
ID=9258401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP82400777A Expired EP0064916B1 (fr) | 1981-05-13 | 1982-04-29 | Masse silico-calcaire à haute porosité et procédé de préparation |
Country Status (12)
| Country | Link |
|---|---|
| US (3) | US4467041A (ja) |
| EP (1) | EP0064916B1 (ja) |
| JP (1) | JPS57196755A (ja) |
| AR (1) | AR227591A1 (ja) |
| AT (1) | ATE11523T1 (ja) |
| AU (1) | AU551580B2 (ja) |
| BR (1) | BR8202717A (ja) |
| CA (1) | CA1183173A (ja) |
| DE (1) | DE3262108D1 (ja) |
| FR (1) | FR2505814A1 (ja) |
| MX (1) | MX159494A (ja) |
| ZA (1) | ZA823139B (ja) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3246053A1 (de) * | 1982-12-13 | 1984-06-14 | Walter 3040 Soltau Krämer | Verfahren zur herstellung von silicium, calcium und sauerstoff in gebundener form enthaltenden massen |
| DE3467953D1 (en) * | 1983-04-21 | 1988-01-14 | Toshiba Kk | Semiconductor device having an element isolation layer and method of manufacturing the same |
| FR2604102B1 (fr) * | 1986-09-18 | 1988-11-10 | Air Liquide | Masse silicocalcaire a haute porosite pour stockage de gaz, et procede de fabrication |
| CH667079A5 (de) * | 1986-10-07 | 1988-09-15 | Klaus Hoelscher Dr | Formkoerper fuer waermeisolationszwecke und verfahren zu seiner herstellung. |
| US4970246A (en) * | 1988-11-01 | 1990-11-13 | Coyne Cylinder Company | Acetylene storage vessel filler and method |
| US5201606A (en) * | 1990-06-25 | 1993-04-13 | Carolina Power & Light Company | Thermal storage tank and associated top structure |
| US5632788A (en) * | 1995-01-31 | 1997-05-27 | Worthington Acetylene Cylinder, Inc. | High porosity calcium silicate mass for storing acetylene gas |
| US5697990A (en) * | 1995-01-31 | 1997-12-16 | Worthington Acetylene Cylinder, Inc. | High porosity calcium silicate mass for storing acetylene gas |
| JP3468363B2 (ja) | 2000-09-12 | 2003-11-17 | 中央発条工業株式会社 | 盗難防止用リテーナクリップ |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1358446A (fr) * | 1963-02-08 | 1964-04-17 | Air Liquide | Procédé de fabrication d'une masse silico-calcaire à haute porosité |
| GB1043015A (en) * | 1963-08-19 | 1966-09-21 | Colonial Sugar Refining Co | Method of manufacturing building structural and paving products using a calcium silicate hydrate bonding matrix |
| DE2318135A1 (de) * | 1973-04-11 | 1974-10-31 | Sueddeutsche Kalkstickstoff | Verfahren zur herstellung von kalksandsteinen |
| DE2423096C3 (de) * | 1973-05-18 | 1979-04-05 | Shikoku Kaken Kogyo K.K., Ibaragi, Osaka (Japan) | Verfahren zum Herstellen eines anorganischen, porösen Formkörpers |
| US3895096A (en) * | 1973-09-10 | 1975-07-15 | Owens Corning Fiberglass Corp | Method of producing hydrous calcium silicate products and the products thereof |
| SE406908B (sv) * | 1974-05-31 | 1979-03-05 | Kansai Thermal Insulating Ind | Forfarande for framstellning av kalciumsilikatisolering |
| DE2601683C3 (de) * | 1976-01-17 | 1982-05-13 | Ytong AG, 8000 München | Kalk-Kieselsäure-Gemisch sowie Verfahren zur Herstellung von dampfgehärteten Baustoffen daraus |
| US4128434A (en) * | 1976-09-17 | 1978-12-05 | Johns-Manville Corporation | High density asbestos-free tobermorite thermal insulation containing wollastonite |
| DE2644116A1 (de) * | 1976-09-30 | 1978-04-06 | Heinz Hoelter | Verfahren und vorrichtung fuer feuerhemmende spritz- und isoliermasse |
| GB1553493A (en) * | 1976-11-18 | 1979-09-26 | Mitsubishi Chem Ind | Process for preparing calcuim silicate shaped product |
| US4131638A (en) * | 1977-07-05 | 1978-12-26 | Johns-Manville Corporation | Process for the manufacture of calcium silicate hydrate objects |
| DE2832194C3 (de) * | 1978-07-21 | 1981-08-27 | Minora, Forschungs- und Entwicklungsgesellschaft für organische und anorganische Baustoffe mbH, 3040 Soltau | Verfahren zur Herstellung von Calciumsilikatgranulaten bzw. -pulvern mit Mikroporenstruktur |
| US4238240A (en) * | 1979-02-16 | 1980-12-09 | Pieter Krijgsman | Method of and structure for forming a reaction product such as calcium silicate and the resulting structure |
| US4349463A (en) * | 1981-01-19 | 1982-09-14 | Union Carbide Corporation | Acetylene storage vessel |
-
1981
- 1981-05-13 FR FR8109538A patent/FR2505814A1/fr active Granted
- 1981-12-14 US US06/330,450 patent/US4467041A/en not_active Expired - Lifetime
-
1982
- 1982-04-29 AT AT82400777T patent/ATE11523T1/de not_active IP Right Cessation
- 1982-04-29 EP EP82400777A patent/EP0064916B1/fr not_active Expired
- 1982-04-29 DE DE8282400777T patent/DE3262108D1/de not_active Expired
- 1982-05-04 CA CA000402238A patent/CA1183173A/fr not_active Expired
- 1982-05-06 ZA ZA823139A patent/ZA823139B/xx unknown
- 1982-05-11 MX MX192632A patent/MX159494A/es unknown
- 1982-05-11 BR BR8202717A patent/BR8202717A/pt not_active IP Right Cessation
- 1982-05-11 AU AU83602/82A patent/AU551580B2/en not_active Expired
- 1982-05-11 US US06/377,185 patent/US4467040A/en not_active Expired - Lifetime
- 1982-05-12 AR AR289373A patent/AR227591A1/es active
- 1982-05-13 JP JP57079296A patent/JPS57196755A/ja active Granted
-
1986
- 1986-04-04 US US06/848,852 patent/US4721698A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| AU551580B2 (en) | 1986-05-08 |
| FR2505814A1 (fr) | 1982-11-19 |
| BR8202717A (pt) | 1983-04-19 |
| MX159494A (es) | 1989-06-19 |
| AR227591A1 (es) | 1982-11-15 |
| DE3262108D1 (en) | 1985-03-14 |
| CA1183173A (fr) | 1985-02-26 |
| FR2505814B1 (ja) | 1984-05-25 |
| US4467040A (en) | 1984-08-21 |
| JPH0211551B2 (ja) | 1990-03-14 |
| JPS57196755A (en) | 1982-12-02 |
| US4467041A (en) | 1984-08-21 |
| EP0064916A1 (fr) | 1982-11-17 |
| AU8360282A (en) | 1982-11-18 |
| ATE11523T1 (de) | 1985-02-15 |
| US4721698A (en) | 1988-01-26 |
| ZA823139B (en) | 1983-03-30 |
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